/Engine/Plugins/Experimental/VirtualCamera/Source/VirtualCamera/Public/VirtualCameraPlayerControllerBase.h
Adjust the focal length of the camera to an adjecent preset value.
the new focal length of the camera in mm
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Virtual Camera|Cinematic Camera|Focal Length") float ChangeFocalLengthPreset ( const bool bShiftUp )